Business Segments - Schedule of Revenue Information by Product (Parenthetical) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 01, 2023	Jul. 02, 2022	Jul. 01, 2023	Jul. 02, 2022
Entity Wide Information Revenue From External Customer [Line Items]
Total revenues	$ 12,855	$ 13,755	$ 26,561	$ 27,142
Distribution Rights [Member]
Entity Wide Information Revenue From External Customer [Line Items]
Revenue Recognized	300	300	700	600
Service Contract Revenues
Entity Wide Information Revenue From External Customer [Line Items]
Total revenues	382	402	765	764
Service Contract Revenues | Distribution Rights [Member]
Entity Wide Information Revenue From External Customer [Line Items]
Revenue Recognized	$ 363	$ 357	$ 727	$ 634